<html>
<head>
<script type="text/javascript" src="./ExternJS/validate.js"></script>
</head>
<body>
<form action="first.html" onsubmit="return validate_form(this);" method="post">
Email: <input type="text" name="email" size="30">
<input type="submit" value="Submit">
</form>
</body>
</html>